ROI-ET Green Power Project

ROI-ET Green Company Limited

Biomass : Organic matters:

Firewood, Rice husk, Bagasse, Woodscrap, Rice straw, Palm shell, Coconut shell, etc. and other agricultural wastes

Animal manure

Waste product form agro-industrial plants

Rubbish

Experience of Rice Husk Power Plant in Thailand

Thailand is mainly an agricultural country :Abundance of agricultural residuals Left over of residual, no value gained Disposal cost

Since 1995, National Energy Policy office (NEPO) :Policy of energy conservationRenewable energy as alternativeFeasibility study

History of Biomass in Thailand

Reduce pollution caused by left over of residuals Reduce Greenhouse effect caused by natural decay (Methane : CH4) and use of fossil fuels as well as utilization of residuals (CO2) Reduce import of fuelReduce electricity total system loss Increase stability of electricity system in area of generation Lower cost of fuel compared with fossil fuelImprove living of people and community

Economics : Local community’s revenueSocial & Cultural : Soil improvement by ash, Environment,

: Residue disposalEducation : Technology & Environmental friendly

Benefits

Higher investment cost of equipment per MW. (>1.2 M. USD)Higher cost of fuel storage and transportationFuel availability is not firm:

SeasonalClimate Export market of main product Government policyUncertain amount of local utilization

Variation of moisture, difficult control combustion Higher corrosion in fuel & ash pathsImplementation of same kind of project in the areaPoor environmental management could cause pollution

Constraints & Threats

• Area, Location : 40 Rai (64,000 m2); Roi-et (510 km from Bangkok)

• Fuel : ~300 Ton/day of rice husk

• Fuel Supply : Rice Mills in the area

• LHV of Fuel : 12.6 MJ/kg (3,000 kcal/kg)

• Water Supply : Chi River, ~13.6 km pipeline

• Connection : 22 kV line PEA

• Installed Capacity : 9.95 MW

• Contracted Capacity with EGAT : 8.8 MW

• Contract period : 21 years

Project OverviewProject Overview

Project Construction Schedule

*A t l COD d l d f h d l d COD d t i i t l i t

1 2 3 4 5 6 7 8 9 10 1 1 1 2 1 3 14 1 5 1 6 1 7 1 8

EPC SigningDateLandfillandReservoir(NonEPC)Pipeline&Rawwaterpump(NonEPC)22Kv.TransmissionLine(NonEPC)CommunicationSystem(NonEPC)EffectiveDate Engineering&DesignProcurement&ManufacturingSite MobilizationPilingConstructionTest&CommissioningCOD*

Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May

October 24,2001

April 23,2003 May 29

ระบบน้ําหลอเย็นCooling Water System

ระบบผลิตกระแสไฟฟาElectricity Generating

Systemระบบผลิตไอน้ําSteam Generating

System

ระบบไฟฟา และระบบควบคุมElectrical &

Control System

ระบบเก็บและลําเลียงเชื้อเพลิง

Fuel Storage & Handling System

ระบบลําเลียงขี้เถาAsh Handling

System

Plant Overview

ระบบปรับสภาพน้าํWater Treatment

System& Waste Water

Treatment System

Overview of Process

Process and Systems

Rice Husk Transportation by Truck to Husk Storage Area

Fuel Storage & Handling System

Process and SystemsFuel Storage & Handling System

New Indoor Storage

Process and Systems

Husk Conveyor

Fuel Storage & Handling System

Process and Systems

Husk Feeding to Boiler Furnace

Steam Generating SystemSteam Generating System

Process and Systems

Fuel Feeding and Combustion

Steam Generating SystemSteam Generating System

Process and SystemsSteam Generating SystemSteam Generating System

Flame of Combustion

Process and SystemsSteam Generating SystemSteam Generating System

Multi-Cyclone Dust Collectors and Electrostatic Precipitator

Process and SystemsElectricity Electricity Generating SystemGenerating System

Steam Turbine and Coupling Gear

Process and SystemsElectrical and Control Electrical and Control SystemSystem

Central Control Room

Process and SystemsAsh Handling SystemAsh Handling System

Bottom Ash and Dust Conveying Systems

Process and SystemsAsh Handling SystemAsh Handling System

Bottom Ash and Dust Unloading Systems

Process and SystemsCooling Water and Water Treatment SystemCooling Water and Water Treatment System

Water Treatment Plant, Waste Water Treatment Plant and Cooling Tower

For the Reported PeriodDescription Unit

Target ActualStack EmissionNOX ppm 200.00 1.38SO2 ppm 60.00 2.04TSP mg/

m3

320.00 56.71CO ppm 690.00 <1.00CO2 % - 6.70O2 % - 9.40

Emission and Effluent

30.07<40.00ºC- Temperature5.02-NTU- Turbidity

<0.02<3.0mg/1- Chromium0.03<2.0mg/1- Copper

<0.05<0.1mg/1- Lead<0.004<0.03mg/1- Cadmium

<0.01<5.0mg/1- Zinc0.03<5.0mg/1- Manganese

0.5<1.0mg/1- Residual Chlorine1.7<100.00mg/1- Total Kjeldahl

Nitrogen

986.00<3,000.00mg/1- Total Dissolved Solids8.0<50.00mg/1- Suspended Solids

38.8<120.00mg/1- COD<2.00<20.00mg/1- BOD

1,489.00< 2,000.00μs/cm

- Electrical Conductivity8.246.50-8.50-- pH

3,841.0010,058.40m3To Discharge Pond Waste

Water Discharge

Effluent WaterActualTarget

For the Reported PeriodUnitDescription

Power Block

Environment Control

Inside Green Area Landscape

Environment Control

Green Area

Environment Control

UNDP Representatives with Energy for Environment Foundation and Press (December 3, 2003)

Guest VisitsGuest Visits

AwardsAwards

Award of Winner by Department of Alternative Energy Development and Efficiency (DEDE), 2004

Award of Winner by Asean Energy Forum in Philippines (May, 2004)

AwardsAwards

Existing Landscape 2006

THANK YOU